Home / 11,241.67-15,527.31-8,421.66

Finding the Fourth Proportional to 11,241.67, 15,527.31 and 8,421.66

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Solution

The fourth proportional to 11,241.67, 15,527.31 and 8,421.66 is: 11,632.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,241.67 : 15,527.31 = 8,421.66 : x
  2. Step 2: Convert to fraction form
    11,241.67/15,527.31 = 8,421.66/x
  3. Step 3: Cross multiply
    11,241.67x = 15,527.31 × 8,421.66
  4. Step 4: Simplify right side
    11,241.67x = 130,765,725.53
  5. Step 5: Solve for x
    x = 130,765,725.53/11,241.67
  6. Step 6: Final answer
    x = 11,632.23

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.